Laws enlisted into the
Coldstream Guards on 22 February 1905, and was stationed in
Egypt and
Sudan until 1912. He supplemented his income by taking photographs with his Kodak Bullseye
box camera and selling them to his fellow soldiers. He later applied for an assignment to the signalling section, mainly in order to obtain access to the unit's
darkroom facilities, and also experimented with communicating with aircraft by
heliograph. Laws returned to England in 1912, and in December "presented himself for a trade test at the headquarters of the Military Wing of the [just created]
Royal Flying Corps, then located at
South Farnborough." He passed and was graded
air mechanic 1st class, but he "had a feeling that he knew more about the subject than did his examiner." Within months, Laws was promoted to sergeant and put in charge of the photographic section of his squadron. Laws was first posted to the
No. 1 Balloon Company and began to take aerial photographs from the Army airship
Beta. Laws discovered that vertical photos taken with 60% overlap could be used to create a
stereoscopic effect when viewed in a stereoscope, thus creating a perception of depth that could aid in cartography and in intelligence derived from aerial images. Next year, Laws took similar photos from kites,
Bleriot and
Farman aircraft and other types just then being completed by the
Royal Aircraft Factory at
Farnborough. He also conducted camera experiments at the second RFC site at
Salisbury Plain. As dirigibles were then allocated to the
Royal Navy, Laws was chosen to help form an aerial reconnaissance unit of fixed-wing aircraft, at that time consisting in part of
B.E.2 biplanes from the Royal Aircraft Factory. This No. 2 (Aeroplane) Company later became
No. 3 Squadron RFC, the first heavier-than-air British unit. ==First World War==